The antonyms for the word dynamizing are calming, sedating, quieting, stilling, relaxing, and tranquilizing. These words indicate the opposite of energizing or invigorating, as dynamizing means to stimulate or activate something or someone. When something needs to be subdued or pacified, these antonyms can be used to express a completely different idea. For instance, if you want to calm down a heated argument or make someone relax, you could use any of these antonyms instead of dynamizing. Overall, using the right antonyms can help clarify your meaning and improve your writing.